Browsable JavaScript Grammar

CC-BY

Grammar extracted by Vadim Zaytsev, see the Grammar Zoo entry for details: js/synytskyy-cordy/extracted
Source used for this grammar: Mykyta Synytskyy, James R. Cordy, TXL Javascript Grammar, Version 2.5, Rev 21.3.12, March 2012

Summary

Syntax

program ::=
	js_program
js_program ::=
	js_declaration_or_statement*
js_subscope ::=
	js_declaration_or_statement*
js_declaration_or_statement ::=
	js_declaration NL
	js_label? js_statement NL
	comment NL
js_label ::=
	id ":"
js_declaration ::=
	js_variable_declaration ";"?
	js_constant_declaration ";"?
	js_function_declaration ";"?
js_variable_declaration ::=
	"var" {js_variable_description ","}*
js_variable_description ::=
	id js_variable_initialization?
js_variable_initialization ::=
	"=" js_assignment_expn
js_constant_declaration ::=
	"const" {js_constant_description ","}*
js_constant_description ::=
	id js_variable_initialization
js_function_declaration ::=
	NL "function" id "(" {js_formal_parameter ","}* ")" NL "{" (NL IN) js_subscope EX "}" NL
js_function_expn ::=
	"function" id? "(" {js_formal_parameter ","}* ")" NL "{" (NL IN) js_subscope EX "}"
js_formal_parameter ::=
	id
js_expn ::=
	js_assignment_expn+
js_assignment_expn ::=
	js_conditional_expn assign_js_conditional_expn*
assign_js_conditional_expn ::=
	js_assignment_op js_conditional_expn
js_assignment_op ::=
	"="
	"*="
	"/" SPOFF "=" SPON
	"%="
	"+="
	"-="
	"<<="
	">>="
	">>>="
	"&="
	"^="
	"|="
js_conditional_expn ::=
	js_logical_or_expn js_conditional_clause?
js_conditional_clause ::=
	"?" js_assignment_expn ":" js_assignment_expn
js_logical_or_expn ::=
	js_logical_and_expn js_logical_or_logical_and_expn*
js_logical_or_logical_and_expn ::=
	"||" js_logical_and_expn
js_logical_and_expn ::=
	js_bitwise_or_expn js_logical_and_bitwise_or_expn*
js_logical_and_bitwise_or_expn ::=
	"&&" js_bitwise_or_expn
js_bitwise_or_expn ::=
	js_bitwise_xor_expn js_bitwise_or_bitwise_xor_expn*
js_bitwise_or_bitwise_xor_expn ::=
	"|" js_bitwise_xor_expn
js_bitwise_xor_expn ::=
	js_bitwise_and_expn js_bitwise_xor_bitwise_and_expn*
js_bitwise_xor_bitwise_and_expn ::=
	"^" js_bitwise_and_expn
js_bitwise_and_expn ::=
	js_equality_expn js_bitwise_and_equality_expn*
js_bitwise_and_equality_expn ::=
	"&" js_equality_expn
js_equality_expn ::=
	js_relational_expn js_equality_op_relational_expn*
js_equality_op_relational_expn ::=
	js_equality_op js_relational_expn
js_equality_op ::=
	"=="
	"!="
	"==="
	"!=="
	"in"
	"instanceof"
js_relational_expn ::=
	js_shift_expn js_relational_op_shift_expn*
js_relational_op_shift_expn ::=
	js_relational_op js_shift_expn
js_relational_op ::=
	"<"
	">"
	"<="
	">="
js_shift_expn ::=
	js_additive_expn js_shift_op_additive_expn*
js_shift_op_additive_expn ::=
	js_shift_op js_additive_expn
js_shift_op ::=
	"<<"
	">>"
	">>>"
js_additive_expn ::=
	js_multiplicative_expn js_additive_op_multiplicative_expn*
js_additive_op_multiplicative_expn ::=
	js_additive_op js_multiplicative_expn
js_additive_op ::=
	"+"
	"-"
js_multiplicative_expn ::=
	js_unary_expn js_multiplicative_op_unary_expn*
js_multiplicative_op_unary_expn ::=
	js_multiplicative_op js_unary_expn
js_multiplicative_op ::=
	"*"
	"/"
	"%"
js_unary_expn ::=
	js_unary_op* js_postfix_expn
js_unary_op ::=
	"delete"
	"void"
	"typeof"
	"++"
	"--"
	"+"
	"-"
	"~"
	"!"
js_postfix_expn ::=
	js_lefthand_side_expn js_postfix_op?
js_postfix_op ::=
	"++"
	"--"
js_lefthand_side_expn ::=
	"new"? js_member_expn
js_member_expn ::=
	js_primary_expn js_selector*
js_selector ::=
	js_arguments
	js_subscripts
	js_field_selector
js_arguments ::=
	"(" {js_assignment_expn ","}* ")"
js_subscripts ::=
	"[" js_expn "]"
js_field_selector ::=
	"." id
js_primary_expn ::=
	"this"
	"class"
	id
	js_literal
	js_array_literal
	js_object_literal
	js_function_expn
	"(" js_expn ")"
js_literal ::=
	"null"
	"true"
	"false"
	js_numeric_literal
	js_string_literal
	js_regular_expn_literal
js_numeric_literal ::=
	number
	js_hex_number
js_string_literal ::=
	stringlit
	charlit
js_regular_expn_literal ::=
	js_regexp
js_array_literal ::=
	"[" {js_array_element ","}* "]"
js_array_element ::=
	js_assignment_expn?
js_object_literal ::=
	"{" {js_property_assignment ","}* ","? "}"
js_property_assignment ::=
	js_property_name ":" js_expn
	"get" js_property_name "(" ")" "{" js_subscope "}"
	"set" js_property_name "(" js_property_set_parameter ")" "{" js_subscope "}"
js_property_name ::=
	id
	js_string_literal
	number
js_property_set_parameter ::=
	id
js_statement ::=
	js_compound_statement ";"?
	js_expression_statement ";"?
	js_if_statement ";"?
	js_for_statement ";"?
	js_while_statement ";"?
	js_break_statement ";"?
	js_continue_statement ";"?
	js_return_statement ";"?
	js_with_statement ";"?
	js_switch_statement ";"?
	js_do_statement ";"?
	js_try_catch_statement ";"?
	js_throw_statement ";"?
	js_debugger_statement ";"?
	js_empty_statement
js_empty_statement ::=
	";"
js_compound_statement ::=
	"{" (NL IN) js_subscope EX "}"
js_expression_statement ::=
	js_expn
js_if_statement ::=
	"if" "(" js_expn ")" js_declaration_or_statement js_else_clause?
js_else_clause ::=
	"else" js_declaration_or_statement
js_for_statement ::=
	"for" "(" {js_declaration_or_statement_no_nl ","}* ";" js_expn? ";" js_expn? ")" js_statement
	"for" "each"? "(" js_declaration_or_statement_no_nl "in" js_expn ")" js_statement
js_declaration_or_statement_no_nl ::=
	js_declaration
	js_statement
js_while_statement ::=
	"while" "(" js_expn ")" js_statement
js_break_statement ::=
	"break" id?
js_continue_statement ::=
	"continue" id?
js_return_statement ::=
	"return" js_expn?
js_with_statement ::=
	"with" "(" js_expn ")" js_statement
js_switch_statement ::=
	"switch" "(" js_expn ")" "{" NL js_case_clause* "}"
js_case_clause ::=
	js_case_clause_value (NL IN) js_subscope EX
js_case_clause_value ::=
	"case" js_expn ":"
	"default" ":"
js_do_statement ::=
	"do" js_statement "while" "(" js_expn ")"
js_try_catch_statement ::=
	"try" js_compound_statement js_catch_clause? js_finally_clause?
js_catch_clause ::=
	NL "catch" "(" id ")" js_compound_statement
js_finally_clause ::=
	NL "finally" js_compound_statement
js_throw_statement ::=
	"throw" js_expn
js_debugger_statement ::=
	"debugger"
GrammarLabMaintained by Dr. Vadim Zaytsev a.k.a. @grammarware. Last updated in September 2015. [↑]